Every thought derives from a thwarted sensation.

Life creates itself in delirium and is undone in ennui.

Only one endowed with restless vitality is susceptible to pessimism. You become a pessimist-a demonic, elemental, bestial pessimist-only when life has been defeated many times in its fight against depression.

Ideas should be neutral. But man animates them with his passions and folly. Impure and turned into beliefs, they take on the appearance of reality. The passage from logic is consummated. Thus are born ideologies, doctrines, and bloody farce.

I am like a broken puppet whose eyes have fallen inside.

We are afraid of the enormity of the possible.

Thinking should be like musical meditation. Has any philosopher pursued a thought to its limits the way Bach or Beethoven develop and exhaust a musical theme? Even after having read the most profound thinkers, one still feels the need to begin anew. Only music gives definitive answers.